CN220396695U - Valve body assembly and gas stove comprising same - Google Patents

Abstract

The utility model provides a valve body assembly and a gas cooker comprising the same, wherein the valve body assembly comprises a gas valve, the gas valve is provided with a knob, one end of the knob stretches into a cooker panel for opening or closing the gas valve, and the valve body assembly further comprises: the mechanical valve is communicated with the gas valve, a switch is rotationally connected to the mechanical valve and used for opening or closing the mechanical valve, and the switch is arranged between the kitchen range panel and the knob along the projection direction of the knob and at least part of the switch extends out of the projection direction of the knob. The switch of the mechanical valve is arranged in the projection direction of the knob of the gas valve, so that the space occupation of the switch and the knob on the kitchen range panel is reduced, the switch and the knob are arranged together, the operation can be performed without moving when the user operates by one hand, and the operation logic of the user is met.

Description

Valve body assembly and gas stove comprising same

Technical Field

The utility model relates to a valve body assembly and a gas cooker comprising the same.

Background

Along with the continuous development of life, more and more abundant food materials walk into people's dining table, the mode of cooking to different food materials is different leads to the user to the demand of gas cooking utensils more and more various, and these demands are mainly to the demand of gas control in the gas cooking utensils, for example in order to make the food materials evenly heated generally need to carry out gas control to the gas valve that has inner ring fire lid and outer ring fire lid, and then receive even firepower and accomplish the culinary art fast in step in the different positions of food materials.

In order to enable flow regulation and control of a gas valve to be more fit with a user cooking scene, a main valve and a secondary valve are generally arranged on a gas cooker in the prior art, knobs are respectively arranged on the main valve and the secondary valve, gas is regulated through the knobs, through holes are correspondingly formed in a cooker panel for the respective knobs to pass through, and meanwhile, two knobs are required to be arranged at intervals to avoid mutual interference between the two knobs, so that more space is occupied on the cooker panel by the knobs, and the two knobs arranged at intervals become very inconvenient when the user uses, especially when the knob is operated by one hand.

Disclosure of Invention

The utility model aims to overcome the defects of space occupation and inconvenient use of a plurality of knobs corresponding to a kitchen range panel in the prior art, and provides a valve body assembly and a gas kitchen range comprising the same.

The utility model solves the technical problems by the following technical scheme:

a valve body assembly including a gas valve, the gas valve being provided with a knob, one end of the knob extending into a stove panel for opening or closing the gas valve, the valve body assembly further comprising:

the mechanical valve is communicated with the gas valve, a switch is rotationally connected to the mechanical valve and used for opening or closing the mechanical valve, and the switch is arranged between the kitchen range panel and the knob along the projection direction of the knob and at least part of the switch extends out of the projection direction of the knob.

In this scheme, this valve body subassembly is compared its cost lower in automatically controlled valve through setting up mechanical valve allotment gas, and the allotment gas of mechanical valve need not through the mode of power supply, does not receive influence such as power failure, touch bad, and the reliability is higher. And, this valve body subassembly flows into the mechanical valve with the gas in the gas valve through the knob of gas valve, and rethread mechanical valve's knob carries out the gas allotment and finally gets into the combustor, because gas valve and mechanical valve overlap allotment gas each other for the condition of the gas volume combination that flows into the combustor increases, and flame shape and firepower range when corresponding combustor burns increase, in order to satisfy the different demands of user to firepower. In addition, the switch of the mechanical valve is arranged in the projection direction of the knob of the gas valve, so that the space occupation of the switch and the knob on the kitchen range panel is reduced, the switch and the knob are arranged together, the operation can be conveniently carried out without moving when the user operates by one hand, and the operation logic is met for the user.

Preferably, the switch comprises a poking plate, a valve rod and a closing piece, wherein the poking plate is rotationally connected to the kitchen range panel, the closing piece is arranged in a cavity of the mechanical valve, a communication hole is formed in the closing piece, and the valve rod is located between the poking plate and the closing piece and is coaxially arranged with the poking plate, the valve rod and the closing piece.

In this scheme, plectrum and valve rod and close the coaxial setting of son, the plectrum is located cooking utensils panel to make the user realize driving through the plectrum and close the son and rotate, close the mechanical valve of communicating hole switch-on when rotating, the plectrum is opened through the rotation mode, and it is less to the space occupation in the vertical direction in the mode that other buttons were opened, and its use mode and knob appear interfering when avoiding using.

Preferably, the communication hole does not penetrate through a junction between the shutter and the valve rod.

In this scheme, through above-mentioned structure setting to make the gas circulate in the closure, close the closure and have sufficient leakproofness, avoid the gas to leak a series of safety problems that lead to.

Preferably, the closing member is provided with an air inlet and an air outlet, the air inlet is communicated with the communication hole, the air outlet is communicated with the communication hole, and the size of the air inlet is larger than that of the air outlet.

In the scheme, through the arrangement, the explosion phenomenon caused by the overlarge amount of the fuel gas entering the burner from the gas outlet due to the overlarge amount of the fuel gas entering the mechanical valve from the fuel gas valve is avoided, and the flame combustion stability of the burner is maintained.

Preferably, along the projection direction of the knob, the distance between the poking piece and the knob is larger than 3.5mm.

In this scheme, the plectrum sets up and the plectrum is located the below of knob along the projection direction of knob, through the interval that limits between plectrum and the knob in order to further avoid pushing down and the rotation knob when interfering with the plectrum.

Preferably, the knob is provided with an avoidance groove corresponding to the poking piece.

In the scheme, the area of the knob corresponding to the shifting block is provided with the avoidance groove, so that interference with the area of the knob corresponding to the shifting block when the shifting block rotates is avoided.

Preferably, the mechanical valve is integrally provided with the gas valve.

In this scheme, through with mechanical valve and the integrative casting of gas valve for mechanical valve and gas valve occupy the space that is littleer in the kitchen range end box of kitchen range panel below, in addition, the interval of the switch of the mechanical valve of an organic whole setting and the knob of gas valve is littleer, occupies corresponding reduction to the space of kitchen range panel.

Preferably, the gas valve is provided with a first outlet and a gas distribution channel, the gas distribution channel is communicated with the cavity of the mechanical valve, the knob is used for opening or closing the gas distribution channel, the mechanical valve is provided with a second outlet and a third outlet, the first outlet is communicated with the inner ring channel of the burner, the second outlet is communicated with the middle ring channel of the burner, and the third outlet is communicated with the outer ring channel of the burner.

In the scheme, the gas distribution channel is communicated with the mechanical valve, that is to say, when the gas valve supplies gas to the inner ring fire cover, the gas can enter the mechanical valve only under the condition that the gas distribution channel is opened, namely, the inner ring fire cover of the burner is in a small fire state, the mechanical valve cannot be opened, and the middle ring fire cover and the outer ring fire cover of the burner cannot be combusted correspondingly.

Preferably, the switch opens the second outlet and closes the third outlet when the knob opens the gas distribution channel;

the switch opens the third outlet and closes the second outlet when the knob opens the gas distribution channel.

In this scheme, through opening middle ring fire lid and outer ring fire lid alone to make the firepower load range of combustor remain stable.

A gas cooker comprising a valve body assembly as described above, the gas cooker further comprising a burner in communication with the valve body assembly.

In this scheme, this gas cooking utensils include valve body subassembly, through setting up this valve body subassembly in order to make this gas cooking utensils's firepower scope abundanter, and knob and switch occupy for the space on the cooking utensils panel little, the one-hand operation of being convenient for, simple structure, the cost is lower moreover, and the reliability is high.

The utility model has the positive progress effects that: compared with an electric control valve, the mechanical valve for blending fuel gas has lower cost, and the mechanical valve for blending fuel gas does not need to supply power, is not affected by power failure, bad touch and the like, and has higher reliability. And, this valve body subassembly flows into the mechanical valve with the gas in the gas valve through the knob of gas valve, and rethread mechanical valve's knob carries out the gas allotment and finally gets into the combustor, because gas valve and mechanical valve overlap allotment gas each other for the condition of the gas volume combination that flows into the combustor increases, and flame shape and firepower range when corresponding combustor burns increase, in order to satisfy the different demands of user to firepower. In addition, the switch of the mechanical valve is arranged in the projection direction of the knob of the gas valve, so that the space occupation of the switch and the knob on the kitchen range panel is reduced, the switch and the knob are arranged together, the operation can be conveniently carried out without moving when the user operates by one hand, and the operation logic is met for the user.

Drawings

Fig. 1 is a schematic view of a gas cooker according to a preferred embodiment of the utility model.

FIG. 2 is a schematic view of a stove bottom case according to a preferred embodiment of the present utility model.

FIG. 3 is a schematic view of a valve body assembly according to a preferred embodiment of the present utility model.

Fig. 4 is a diagram showing a positional relationship between the avoidance groove and the paddle according to a preferred embodiment of the present utility model.

FIG. 5 is a schematic view of a gas distribution channel according to a preferred embodiment of the present utility model.

FIG. 6 is a schematic view showing the connection between the valve and the valve rod according to a preferred embodiment of the present utility model.

Reference numerals illustrate:

gas kitchen ranges 100

Kitchen range panel 101

Kitchen range bottom box 102

Valve body assembly 20

Valve body 201

Air distribution channel 202

Gas valve 21

Knob 211

Mechanical valve 22

Switch 221

Plectrum 30

Valve stem 40

Closure 50

Communication hole 51

Air inlet 52

Air outlet 53

Avoidance groove 60

First outlet 70

Second outlet 80

Third outlet 90

Spacing H between plectrum and knob

Detailed Description

The utility model is further illustrated by means of the following examples, which are not intended to limit the scope of the utility model.

The embodiment provides a gas cooker 100, as shown in fig. 1 and 2, the gas cooker 100 includes a cooker panel 101 and a cooker bottom case 102, the cooker bottom case 102 includes a burner (not shown in the figure), the burner is provided with an inner ring fire cover, an intermediate ring fire cover and an outer ring fire cover, the inner ring fire cover, the intermediate ring fire cover and the outer ring fire cover are respectively provided with relatively independent gas channels, so that gas sequentially enters each relatively independent gas channel, and independent combustion of the inner ring fire cover, the intermediate ring fire cover and the outer ring fire cover is realized.

As shown in fig. 2, 3 and 4, the gas stove 100 further includes a valve body assembly 20, the valve body assembly 20 includes a gas valve 21, the gas valve 21 is provided with a knob 211, one end of the knob 211 extends into the stove panel 101 for opening or closing the gas valve 21, and an inner ring channel of the gas valve 21 is communicated with a gas channel of an inner ring fire cover of the burner so as to supply gas to the burner through the gas valve 21. In addition, the valve body assembly 20 further comprises a mechanical valve 22, the mechanical valve 22 is communicated with the gas valve 21, a switch 221 is rotatably connected to the mechanical valve 22, the switch 221 is used for opening or closing the mechanical valve 22, the switch 221 is arranged between the kitchen range panel 101 and the knob 211 along the projection direction of the knob 211, and at least part of the switch 221 extends out of the projection direction of the knob 211.

Specifically, the switch 221 is located below the knob 211 and is located on the upper surface of the stove panel 101, by setting the switch 221 in the projection direction of the knob 211, so that the switch 221 and the knob 211 are overlapped in the vertical projection direction, and further, the space occupied by the switch 221 and the knob 211 on the stove panel 101 is reduced, compared with the side-by-side arrangement of the switch 221 and the knob 211, the occupied space is smaller, in addition, by extending at least part of the switch 221 out of the projection direction of the knob 211, the switch 221 extends on the stove panel 101, a user can rotate the switch 221 through the extending part when rotating the switch 221, the inconvenience of opening the switch 221 caused by extending the hand into the projection direction of the knob 211 by the user is avoided, and when the switch 221 and the knob 211 are set together, the user can rotate the switch 221 after rotating the knob 211, because the switch 221 and the knob 211 are partially overlapped, the user can realize the rotation of the switch 221 without moving other adjacent positions along the projection direction, so that the user can operate the switch 221 without moving the extending the hand in one-hand, and the operation logic is met.

Further, the valve body assembly 20 flows the fuel gas in the fuel gas valve 21 into the inner ring fire cover and the mechanical valve 22 of the burner through the knob 211 of the fuel gas valve 21, and then the fuel gas is blended by the switch 221 of the mechanical valve 22 to finally enter the middle ring fire cover or the outer ring fire cover of the burner, and as the fuel gas valve 21 and the mechanical valve 22 are mutually overlapped to blend the fuel gas, the combination of the fuel gas amount flowing into the burner is increased, and the flame shape and the flame range of the corresponding burner are increased when the burner burns, so as to meet different requirements of users on the flame. Compared with an electric control valve, the cost of the valve body assembly 20 for blending fuel gas by arranging the mechanical valve 22 is lower, the blending fuel gas of the mechanical valve 22 does not need to be supplied with power, and the valve body assembly is not affected by power failure, bad touch and the like, and has higher reliability.

Further, as shown in fig. 6, the switch 221 includes a dial 30, a valve rod 40 and a shutter 50, the dial 30 is rotatably connected to the kitchen panel 101, the shutter 50 is disposed in the cavity of the mechanical valve 22, the shutter 50 is provided with a communication hole 51, the valve rod 40 is disposed between the dial 30 and the shutter 50, and the dial 30, the valve rod 40 and the shutter 50 are coaxially disposed.

Specifically, a cavity for accommodating the closure member 50 is arranged in the mechanical valve 22, the cavity is in a conical structure, the fuel gas flowing in from the fuel gas valve 21 flows to the middle ring fire cover or the outer ring fire cover through the cavity, the closure member 50 is in a conical structure and is rotationally connected to the cavity, the closure member 50 is provided with a communication hole 51, the communication hole 51 is used for storing the fuel gas and enabling the fuel gas to flow to the corresponding fire cover after the closure member 50 is communicated with a fuel gas channel of the middle ring fire cover or the outer ring fire cover, one end of the closure member 50 corresponding to the valve rod 40 is provided with a groove, the valve rod 40 is convexly provided with a bump, the bump is matched with the groove to drive the closure member 50 to rotate when the valve rod 40 rotates, similarly, the dial 30 is provided with a groove and is matched with one end of the valve rod 40 towards the dial 30, the dial 30 is realized to drive the closure member 50 to rotate, the dial 30 is in a flat plate structure in the prior art, the dial 30 is in a water drop shape, the end of the knob 211 with smaller size is projected, so that the space occupation of the knob 211 and the pulling piece 30 on the stove panel 101 is reduced, the end of the knob 211 with larger size is positioned on the surface of the stove panel 101 far away from the stove bottom box 102, so that a user drives the valve rod 40 and the closure member 50 to rotate by pulling the pulling piece 30, when the closure member 50 rotates, the mechanical valve 22 is communicated through the communication hole 51, the pulling piece 30 is opened in a rotating manner along the surface of the stove panel 101 far away from the stove bottom box 102, compared with a manner of pressing a key in a vertical direction and opening the mechanical valve 22, the space occupation in a vertical direction is smaller, and the use manner of the pulling piece 30 is prevented from interfering with the knob 211 when the pulling piece is used.

In the present embodiment, the communication hole 51 does not penetrate the junction of the shutter 50 and the valve stem 40.

Specifically, the end of the closure member 50 abuts against the end of the valve rod 40, and the communication hole 51 does not penetrate through the closure member 50 and faces the end of the valve rod 40, so that when the fuel gas enters the cavity and the closure member 50, the shape of the closure member 50 and the cavity is kept consistent, the tightness of the mechanical valve 22 is improved, and a series of safety problems caused by leakage of the fuel gas from the joint of the closure member 50 and the valve rod 40 are avoided. Further, the gas is stored through the communication hole 51 so that the gas can be more rapidly discharged when the shutter 50 communicates with the gas passage of the corresponding fire cover, thereby improving the combustion reaction rate of the corresponding fire cover.

The shutter 50 is provided with an air inlet 52 and an air outlet 53, the air inlet 52 communicates with the communication hole 51, the air outlet 53 communicates with the communication hole 51, and the size of the air inlet 52 is larger than the size of the air outlet 53.

Specifically, the air inlet 52 and the air outlet 53 are elliptical holes and are respectively located at both sides of the communication hole 51, and the air inlet 52 and the air outlet 53 penetrate through the tapered surface of the shutter 50, and when the shutter 50 rotates, the fuel gas is rotated through the air inlet 52 to communicate with the fuel gas valve 21, so that the fuel gas of the fuel gas valve 21 can enter the communication hole 51 through the air inlet 52 for temporary storage, and when the shutter 50 continues to rotate, the fuel gas is rotated through the air outlet 53 to communicate with the fuel gas passage of the middle ring fire cover or the outer ring fire cover to supply the fuel gas to the corresponding fire cover, and at the same time, the inner ring fire cover supplies the fuel gas through the fuel gas valve 21, so that the inner ring fire cover and the middle ring fire cover or the outer ring fire cover are combined to burn, the flame range of the burner is increased, and the flame combustion stability of the burner is maintained by setting the size of the air outlet 53 smaller than the size of the air inlet 52 so as to avoid the fuel gas entering the burner from the air outlet 53 to excessively large.

As shown in fig. 4, along the projection direction of the knob 211, the distance between the dial 30 and the knob 211 is H, and H is greater than 3.5mm.

Specifically, the dial 30 is a flat plate structure, the knob 211 further includes a cylindrical handle, a connecting rod, and a cock coaxially connected to the connecting rod, the cock is located in the cavity of the gas valve 21, and an air hole for communicating with the cavity of the mechanical valve 22 is provided on the cock, which is in the prior art, and will not be described in detail herein. The cylindrical handle is located above the kitchen range panel 101 and the end of the cylindrical handle, which is close to the kitchen range panel 101, is a horizontal plane, the space between the plectrum 30 and the knob 211 is the space between the upper surface of the plectrum 30 and the end of the cylindrical handle, which is close to the kitchen range panel 101, along the vertical projection direction, in a preset space mode, so that the interference between the cylindrical handle and the plectrum 30 is avoided when the knob 211 rotates and presses down to open the gas valve 21, and in addition, the plectrum 30 opens the mechanical valve 22 in a rotating mode, that is, the plectrum 30 does not need to occupy the space on the vertical projection direction when opening the mechanical valve 22, so that the condition that the cylindrical handle is abutted with the plectrum 30 when the gas valve 21 and the mechanical valve 22 are simultaneously opened is ensured, and the use experience of a user is improved.

The knob 211 is provided with a relief groove 60 corresponding to the dial 30.

Specifically, the connecting rod of the knob 211 is located at one side of the plectrum 30 along the horizontal direction, a protrusion along the horizontal direction is provided on the connecting rod, and the protrusion is used for being abutted against the upper surface of the kitchen range panel 101, so as to provide a supporting force when the knob 211 rotates and presses down to open the gas valve 21, and the avoiding groove 60 is an arc groove and is arranged at one side of the protrusion, which is close to the plectrum 30, so that the condition that the plectrum 30 is difficult to rotate due to too close to the distance between the plectrum 30 and the protrusion even being abutted against when part of the plectrum 30 is located in the projection direction of the knob 211 is avoided.

In the present embodiment, the mechanical valve 22 is provided integrally with the gas valve 21.

Specifically, the mechanical valve 22 and the gas valve 21 share the same valve body 201, the valve body 201 is provided with two cavities, the two cavities correspond to the cavity of the gas valve 21 and the cavity of the mechanical valve 22 respectively, the two cavities correspond to the shutter 50 and the cock respectively, the two cavities are mutually communicated, by arranging the two cavities in the same valve body 201, compared with the scheme that the gas valve 21 and the mechanical valve 22 are arranged close to each other and the plectrum 30 is arranged in the projection direction of the knob 211, the integrally arranged mechanical valve 22 and gas valve 21 can further arrange the plectrum 30 in the projection direction of the knob 211, so that the size of the plectrum 30 extending out of the projection direction of the knob 211 is reduced, and the space occupation on the kitchen range panel 101 is reduced. In addition, the mechanical valve 22 and the gas valve 21 are integrally arranged, and are processed by adopting a casting mode in the prior art, so that the space occupied by the mechanical valve 22 and the gas valve 21 in the kitchen range bottom box 102 below the kitchen range panel 101 is smaller, and the space utilization rate of the mechanical valve and the gas valve is improved.

Further, as shown in fig. 5, a first outlet 70 and a gas distribution channel 202 are disposed on the valve body 201, the gas distribution channel 202 is located between the two cavities and is used for communicating the two cavities corresponding to the gas valve 21 and the mechanical valve 22, a cock in the cavity corresponding to the gas valve 21 is used for opening or closing the gas distribution channel 202, a second outlet 80 and a third outlet 90 are also disposed on the valve body 201 and are communicated with the cavity corresponding to the mechanical valve 22, a closer 50 is disposed in the cavity corresponding to the mechanical valve 22 and is used for opening or closing the second outlet 80 and the third outlet 90, wherein the first outlet 70 is communicated with an inner ring channel of a burner of the gas cooker 100, the second outlet 80 is communicated with an middle ring channel of the burner, and the third outlet 90 is communicated with an outer ring channel of the burner. That is, when the valve body assembly 20 supplies fuel gas to the inner ring fire cover, only when the gas distribution channel 202 is opened, the fuel gas can enter the cavity corresponding to the mechanical valve 22, that is, the inner ring fire cover of the burner is in a small fire state, the second outlet 80 and the third outlet 90 cannot be opened, the middle ring fire cover and the outer ring fire cover of the burner cannot be combusted correspondingly, and when the inner ring fire cover is in a medium fire or large fire state, the fuel gas drives the cock to rotate through the knob 211 and enter the gas distribution channel 202, and then drives the closure member 50 to rotate under the rotation of the plectrum 30 so as to correspondingly open the middle ring fire cover or the outer ring fire cover of the burner.

In this embodiment, a gear indication mark is provided on the stove panel 101 corresponding to the pulling piece 30, the gear indication mark is marked by 1 and 2 in the prior art, when the knob 211 opens the gas distribution channel 202, the switch 221 opens the second outlet 80 and closes the third outlet 90, the gear is 1, the gas valve 21 supplies gas to the gas channel of the inner ring fire cover, so that the inner ring fire cover burns correspondingly, the gas is supplied to the middle ring fire cover through the second outlet 80, so that the middle ring fire cover burns correspondingly, and the outer ring fire cover closes correspondingly in the state that the third outlet 90 is closed, similarly, when the knob 211 opens the gas distribution channel 202, the switch 221 opens the third outlet 90 and closes the second outlet 80, and the gear is 2 at this time, so that the middle ring fire cover closes, and the outer ring fire cover burns correspondingly, so that the middle ring fire cover and the outer ring fire cover open independently, so that the fire load of the burner remains stable when the gas is supplied to the burner by the valve body assembly 20, and the use safety of the user is improved.

The gas cooker 100 in the embodiment comprises the valve body assembly 20, and the valve body assembly 20 is arranged in the gas cooker 100 so that the fire power of the gas cooker 100 is simpler to be allocated, and the knob 211 and the switch 221 occupy small space on the cooker panel 101, so that the gas cooker is convenient for a user to operate by one hand, the cost is lower, and the reliability is high.

While specific embodiments of the utility model have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and the scope of the utility model is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the principles and spirit of the utility model, but such changes and modifications fall within the scope of the utility model.

Claims (10)

1. A valve body assembly, the valve body assembly including the gas valve, the gas valve is provided with the knob, the one end of knob stretches into cooking utensils panel for open or close the gas valve, its characterized in that, the valve body assembly still includes:

the mechanical valve is communicated with the gas valve, a switch is rotationally connected to the mechanical valve and used for opening or closing the mechanical valve, and the switch is arranged between the kitchen range panel and the knob along the projection direction of the knob and at least part of the switch extends out of the projection direction of the knob.

2. The valve body assembly of claim 1, wherein the switch comprises a plectrum, a valve rod and a closure member, the plectrum is rotatably connected to the kitchen range panel, the closure member is disposed in a cavity of the mechanical valve, a communication hole is disposed on the closure member, the valve rod is disposed between the plectrum and the closure member, and the plectrum, the valve rod and the closure member are coaxially disposed.

3. The valve body assembly of claim 2, wherein the communication hole does not extend through a junction of the closure member and the valve stem.

4. A valve body assembly as claimed in claim 3, wherein the closure member is provided with an air inlet and an air outlet, the air inlet being in communication with the communication hole, the air outlet being in communication with the communication hole, the air inlet being of a size greater than the air outlet.

5. The valve body assembly of claim 2, wherein a spacing between the paddle and the knob in a projection direction of the knob is greater than 3.5mm.

6. The valve body assembly of claim 2, wherein the knob is provided with a relief groove corresponding to the paddle.

7. The valve body assembly of claim 1, wherein the mechanical valve is integrally provided with the gas valve.

8. The valve body assembly of claim 7, wherein the gas valve is provided with a first outlet and a gas distribution passage, the gas distribution passage being in communication with the cavity of the mechanical valve, the knob being used to open or close the gas distribution passage, the mechanical valve being provided with a second outlet and a third outlet, the first outlet being in communication with the inner annular passage of the burner, the second outlet being in communication with the middle annular passage of the burner, the third outlet being in communication with the outer annular passage of the burner.

9. The valve body assembly of claim 8, wherein the switch opens the second outlet and closes the third outlet when the knob opens the gas distribution passage;

the switch opens the third outlet and closes the second outlet when the knob opens the gas distribution channel.

10. A gas burner comprising the valve body assembly of any one of claims 1-9, the gas burner further comprising a burner in communication with the valve body assembly.